مهاجرت پرندگان : شناخت مسیر مهاجرت پرندگان
706 بار بازدید -
6 سال پیش
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For thousands of years and
For thousands of years and countless generations, migratory birds have flown the same long-distance paths between their breeding and feeding grounds. Understanding the routes these birds take, called flyways, helps conservation efforts and gives scientists better knowledge of global changes, both natural and man-made. QUEST heads out to the Pacific Flyway with California biologists to track the rhythm of migration.
6 سال پیش
در تاریخ 1397/04/05 منتشر شده
است.
706
بـار بازدید شده